extern "C" void kernel_main() {
    volatile char* vga = (volatile char*)0x100000;
    const char* msg = "Hello from C++ bootloader!";

    for (int i = 0; msg[i]; i++) {
        vga[i * 2] = msg[i];
        vga[i * 2 + 1] = 0x07; // light gray on black
    }

    while (true) { }
}